Twitter reported its fourth quarter earnings before the market opens on February 8. It reported revenue of $731.6 million, above analyst estimates of $686.4 million. That gain in revenue was a surprise, and it's the company's first increase in revenue in a year.

But Twitter also reported that it had 330 million monthly active users, slightly missing analyst estimates of 333 million. The company's total number of monthly active users was flat and showed no increase from the previous quarter.